Mortising-maghine



(No Model.) 3 Sheets-Sheet 1. J. HOLMES & K.1PETERS0N.

MORTISING MACHINE Patented Ma 8, 1894.

(No Model.)

J. HOLMES &- K. PETBRSO 3 SheetsShe ec NI MORTISING MACHINE.

Patented May 8, 1894.

ms NATIONAL LIYNOQRAPHINE COMPANY.

wAsnmemN, n. c.

U NITED'STAT S;

JAMES Hon'MEs AND KARL PETERSON, on .TAMESTOWN, NEWIIYORK.

,MORTISI Ncel-u NE.

s'rnc'rmcncrroiv forming. al-1; f Letters latent No. 519,502, dated. May a, 1894. I A p ars filed November 8,1892. Serial No. 451.371. (No modeh) To whom it may concern: v

Be it known that we, JAMES HOLMES and KARL PETERsQN,citizens ofthe United States, residing at Jamestown, in the county of Chautauqua and State of New York, have invented a new and useful Mortising-Machine, of which the following isa specification.

The invention relates to improvements in mortising machines.

The object of thepresent invention is to improve the construction of mortising machines,

and provide one which will be comparatively simple and inexpensive in construction, and

front elevation. Fig. 3 is-a central'vertical longitudinal sectional'view. Fig. 4 is a detail sectional view on line w -x of Fig. 3. Fig. 5 is a detail view of the clamp. Fig. 6 is'a detail perspective view of the parallel longitudinally and transversely disposed slides for supporting the table. Figs. 7 and 8 are detail views of cutting tools. Fig.9 is a detail view of a portion of oneedge of a door illus trating the-shapeof the mortise.

Like numerals of reference indicate corre sponding parts in all the figures of the draw- 1n s. I e j I I ldesignates a frame composed of corner posts or standards 2, and upper and lower horizontally disposed longitudinaland transverse pieces 3,4,5 and 6; and on the front of. the frame are arranged opposite vertical ways 7, in which are arranged parallel'sides 8 of a vertically reciprocating bracket 9. The

bracket 9 is. provided on .its'top with ways disposed horizontally, and arranged transversely of a table 11, but-longitudinally ofthe- ,maehine,'and having traversing in them trans verse slides 12 to whicharel fixed longitudinal slides 13. v The longitudinal slides are arranged in the ways 14 of the table ll, andtlie sition of slides andgrooves, the table and work that may be carried by the same is given a longitudinal and transverse adjustment,

vertical adjustment of, the table.

The transverse adjustment of the table is obtained by an adjusting screw 15 which is swiveledin' a vertical projection 16 of the bracket 9, and which engages a threaded opening .of a depending lug 17 of an arml8 of the outer'longitudinal slide 13. The transverse adjustment is very accurate,and the adjusting screw is turned bya Wrench 19 engaging a polygonal portion of a cap 20 secured tothe outerend of the adjusting screw, and adapted to prevent the wrench 19 becoming detached and lost. 1

The longitudinal movement of the table is efiected by a rock shaft 21 journaled in suitable bearings of depending arms 22 and 23 of latter traverses the slides 13. By this dispothe bracket 9 and carrying an arm 24 which 1 engages an inverted U-shaped lug 25 whereby when the rock-shaft is turned by a crank handle 26 at its front or outer end the table willbe moved longitudinally. The approxi-,

.mately U-shaped lug consists of similarsides turning the'rock-shaft to the cran'k handle shown. The-length of the longitudinalmovement of the table is regulated by screws 28 mounted in-threaded openings of depending projections-29 of the table and'iarranged toengage the bracket 9.

The. table is depressed bymeans of a treadle '30 connected by vertical parallel rods 31 with the bracket 9; the verticalparallel rods 31 I are arranged in perforated cars 32 of the frame, and have disposed on themspiral springs33- which have thei-rten'sion adjusted by collars 34 arranged at their upper ends;

and when the treadleis depressed by the foot treadle is relieved ofthe pressure of'the foot,

the spiral springs will return the table to its normal position. The collars 34 arese'cured of theoperator to lower the table, the spiral springs are compressed, whereby when the too and the vertical ways ofthe frame provide a i Y disposed adjusting screw 36 which is mounts ed in a threaded'opening of a projection 37 of a cross-bar 38, and it is inverted and arranged to be engaged by the bracket. The adj usting screw 36 is locatedbelow the bracket, and determines the width of the cutting, the

length of the cutting being. regulated by the screws 28 which are disposed longitudinally of the table, and the depth of the cutting being governed by the transversely disposed screw 15.

The work is adjusted on the table so that the cutting may be done at the proper place, by adjustable spring gages 39 located in a longitudinal groovetO of the table near" opposite ends thereof and secured at the desired adjustment by bolts 41 which are located in slots 42" of the table. The innerportion of each gage is inclined upward, and the innerend is bent downward to form a shoulder or stop t3; and wherra dooror other piece of work is placed on the table from either end thereof, the nearer one of the gages is depressed into the groove, when the door movesover the smooth inner face of the same and the door is moved up against the shoulder'or downwardly bent end of the othergage, and is securely held when so adjusted by a clamp 44. The clamp consists of aclamping foot 45-havi-ng ashauk 46 terminating at its upper end in anopening-tfl in which is arranged an eccentrically mounted spindle 48-, and the latter connects two bearin g disks 49, which are journaled in forwardly projecting arms 5001: an approximately U-shaped support 51 secured tothe table at the inner edge thereof and extending longitudinally of the same, and provided with extensions 52. From oneof the disks 49 extends a pin 53 towhich is secured a handle 54 byme'ans of which the clampisoperated. The spindle 48 is arranged eccentrically of the bearing disks 49, and as the latter turn in their bearings the spindle is raised and lowered, thereby operating the clamp.

In the lower portion of the frame 1 is secured a stationary longitudinal shaft 55, and mounted loosely on the latter are stepped pulleys 56 and an intermediate pulley 57. The reduced portions 58 of the stepped pulleys 56 are designed to be connectedby beltin'g (not shown) with some suitable motive power 5' and by having eneof the belts twisted, and the other one straight, the pulleys .56will rotate in oppositedirections. Motion iscommunicated from the stepped pulleys to. acutter'shaft59 which is jou'rnaled in suitable bearings of the frame at the top thereof by a. belt 60, which is arranged on a pulley 61 of the longitudinally disposed cutter shaft, a belt-shifter 62 being provided to move the belt from the stepped pulleys 56 to the pulley 57, and from the latter to either of the stepped pulleys according to the direction in which the cutter shaft is to be revolved. When the belt is shifted from one of the stepped pulleys to the other the loose pulley :-57, will prevent injury tothe belt. Each of the pulleys 56 and 57 is provided with an oil tube 63 extending from the hub to the ring, and having its outer end in'teriorly threaded, and provided with a screw plug 64.- which serves as a stopper. These tubes are adapted tocontainthe necessary lubricant, preferably oil, and take the placeof an oil cup.

In Figs. 7 and8of the accompanying drawings are illustrated cutting tools 65 and. 66,

each of which is provided with a shank 67, and isadapted to be securedin an opening or ball at the frontend of the cutter shaft59 by a set screw 68. The. cutting tool 66 is adapted for rapid work, and maybe employed to great advantage, but the reversible cutting tool 65 is especially adapted for a finer class of work, and with it wood is less liable to split or splinter. Eaehcutting tool: has its head provided with a regularlywcurved concave outer front face with theperip'heralor curved edges in'the same vertical plane, and is provided at opposite sides with cutting edges 69 formedby recessing the head. The reversible cutter orcutting tool is provid'ed with similar oppositely disposed curved peripheral recesses of even depth forming'a pair of opposite shouldersr at opposite sidesof the head.

Theoperation of the machine is as follows: The table is set by" the various adjustments as above described to cut the size of mortise desired, and the door is placed on the table in proper position by means of said gages and securely held by the clamp. The table is moved to the left, or back, previous to the placing of the door on the table, until the screw 28 at the right hand end of. the table strikes the bracket. The treadle is then depressed by the foot, carrying the bracket downward until it is stopped by the vertically disposed adjusting screw 36; and the table is moved to the right by the leg of the operator pressing against the crank handle 26 until the adjusting screw at the left hand end of the table strikes the bracket. The

to raise the table, and the cut is complete,

and is of the form illustrated in Fig. 9 of the accompanying drawings, and is. designed for butt hinges having rounded edges The above is the operation when the cutting tool 66 is employed. When the other tool is" used the machine is reversed before the longitudinal movement of the table by shifting the belt from the stepped pulley nearer the table to the other one. The foot of the clamp is provided with a' block or plate of wood 70, and an intermediate layerof elastic material 71 such as rubber. or the like; and thiszconstrnction prevents the work clamped being bruised or otherwise injured by the clamp.

The clamp can be mounted on the table to ried by the bracket and mounted thereonfor longitudinal'and transverse movement, and a rock-shaftjournaled on'the bracket and disposed transversely of the table and havin'g'an arm engaging the latter to move-the same longitudinally, substantially as described.

2. In a wood-Working machine, the combination of a frame provided at its front with vertical ways, a bracket having opposite depending sides arranged in the ways and adapted to reciprocate therein, vertically movable rodsmounted on the frame and having their upper ends connected to. the bracket, a treadle secured to the lower ends of the rods, spiral springs disposed on the rods and interposed between the bracket and theframe, a table carried by the bracket andmounted thereon for longitudinal and transverse movement, and a rock-shaft journaled on the bracket and disposed transversely of the table and provided with an arm engaging the latter, substantially as and for the purpose described.

3. In a wood working machine, the combination of a frame, a horizontally disposed cutter shaft, a table provided on its lower face with ways disposed longitudinally of it, a bracket mounted for reciprocation on i the frame, and provided with ways disposed transversely of the table, the parallel transverse and longitudinally disposed'slides fixed together and arranged in said ways, and a rock shaft journaled on the bracket and having an arm engaging thetable and arranged to move the same longitudinally, substantially d e' I I site sides with curved peripheral recesses of scribed. I

4. In a wood working machine, the combination of a frame, a longitudinally disposed shaft journaled therein for carrying a cutting tool, a table provided with ways arranged longitudinally of it-,'a. bracket mountedfor vertical reciprocation on the frame and provided with ways disposed transverely of. the table, the transverse and longitudinally disposed slides arranged in said ways, verticallymovable rods mounted on the frame and hav-v ing their upper ends connected to the'bracket, a-treadle secured to the lower ends of the tially-as described.

rods, spiral springs disposed on the rods and interposed between the bracket and the fraine,

a'rock shaft journaled in the bracket and.

provided with an arm engaging the table and 5. In a wood working machine,',the-combination-of a frame provided at its front with vertical Ways, a table having on its lower face ways disposed longitudinally of it, a bracket having opposite depending sides arrangedin the ways of the frame and. adapted to reciprocate therein and provided with ways disposed transversely of the table, the parallel transverse and longitudinally disposed slides arranged in the ways of the table and the tically disposed adjusting screw located be neath the bracket andarranged to engage the latter, a treadle connected with the bracket i and adapted to depress the same, springs for raising the bracket-a rock-shaft journaled in the bracket and having an arm engagingthe :table to move the latter longitudinally, and-a crank handle'arranged at the front end of. the

rock-shaft, substantiallyas described.

6. In a wood working machine, the combination of a frame,'a horizontally disposed shaft,a table capable of vertical and longitudinal movement, and a cutting tool carried by the shaft, and arranged at the outer end thereof and having a regularly curved concave front face with the peripheral edges in the same vertical plane and provided with opposite peripheral cutting'edges, substan- 7. In a wood working machine, a cutter designed for cutting mortises in therfaces of doors, windows, and the like, and'having'a concaved front face and provided at oppo- JAMES HOLMES.

KARL PETERSON.

Witnesses: I I

-OLOF A. OLSON,

WM. 0; Pn rnnson. 

